Tapcensus

Water quality for ZIP code 96774

Hawaii County, Hawaii, one of 28 ZIP codes in the county. 39 active public water systems serve the county; 3 had an EPA violation in the past three years.

Most likely your provider

Ookala (dws) HI0000104 · Community water system · Ground water · Ookala
Serves 264 people Rules violated, past 3 years 0 Last sanitary survey Oct 22, 2025 Distance 3.8 mi

Other community water systems in Hawaii County

36 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Laupahoehoe-Kapehu
Laupahoehoe
1,169 0 5.0 mi
Paauilo
Paauilo
716 0 5.7 mi
Haina
Haina
4,563 0 11.3 mi
Hakalau-Wailea
Hakalau-wailea
402 0 13.6 mi
Honomu
Honomu
645 0 13.8 mi
Pepeekeo Water Association
Pepeekeo
60 0 16.9 mi
Pepeekeo
Pepeekeo
1,450 0 16.9 mi
Papaikou
Papaikou
2,203 0 18.9 mi
Kukuihaele
Kukuihaele
483 0 19.1 mi
Waiki'i Ranch
Waikii Ranch (dho)
102 0 20.5 mi
South Kohala
South Kohala
9,612 1 21.9 mi
Hawaiian Ocean View Estates
Kona
1,000 0 23.9 mi
Hilo
Hilo
39,477 0 25.0 mi
Olaa-Mountain View
Olaa-mt.view
6,467 0 31.5 mi
Niulii
Niulii
254 0 32.7 mi
Lalamilo
Lalamilo
1,895 0 33.5 mi
Waikoloa
Waikoloa (dho)
12,100 0 33.7 mi
Kohala Ranch Water Co.
Kohala Joint Venture
850 0 34.1 mi
Kawaihae Unit #1
Kawaihae
193 0 34.2 mi
Hawaiian Shores
Hawaiian Shores Dho
1,360 0 34.4 mi
Napuu Water Inc.
Puuwaawaa Ranch Dho
468 0 35.2 mi
North Kohala
North Kohala
4,933 0 37.3 mi
Hawaii Volcanoes Nat.park
Hvnp (dho)
4,201 0 37.5 mi
Hawaiian Beaches
Hawaiian Shores Dho
3,546 0 39.2 mi
Pahoa
Pahoa
1,885 0 39.4 mi
All 37 community water systems in Hawaii County
Non-community systems in Hawaii County (2: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
New Moon Foundation
Kapaau
80 0 0
Kilauea Military Camp
Kilauea Volcano
220 0 0
About this data

Water systems are matched to Hawaii County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Hawaii records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.